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homodyne n.【物理學】零差,零拍。

homoe

The channel capacity achieved in our experiments was better than that of the dual homodyne coherent state , homodyne coherent state and squeezed state communication when the average photon number exceed 0 . 99 , 1 . 11 and 2 . 06 respectively . it is more interesting that we found in the experiment , that the maximum channel capacity for a single mode - fock state communication can be surpassed with our system when the average photon number exceed 11 . 302 我們實驗所得密集編碼的信道容量在光子數大于0 . 99 、 1 . 11及2 . 06時將分別超過相干態雙零差通訊信道容量、相干態零差通訊的信道容量以及壓縮態零差通訊的信道容量;最重要的是,當平均光子數(

This multi - purpose optical metering system had adopted the twyman - green interferometric system as its center , containing an advanced digital wave surface interferometry and a kind of homodyne interferometer displacement testing method with nanometer - sized capacity . at the same time , many wide - applied metering technology , for example , the diffracted field ( fringe ) measurement , co - focal lens system , optical fiber sensors and 4f ( focal distance ) space filter system which can embody the chief principle of fourier optics well , were combined into it successfully . this instrument can firstly offer and show modern optical testing method in the laboratory for majors of information processing , instrument science , measuring and testing technology and automatic technology 該多功能激光光電實驗系統以泰曼-格林干涉( twyman - green )光路作核心,包括先進的數字波面干涉技術和一種基于空間干涉原理的、納米分辨率零差干涉儀位移測量方法,同時將多種新穎、工程實用價值高的測量技術和光路如衍射測量、共焦顯微技術、光纖傳感技術以及反映傅立葉光學基本光學原理的4f空間濾波系統也組合進去。

Lfmcw radar adopts the receiver with the structure of “ homodyne - fourier ” , and acquires the range spectrum after its if signal is sampled , and then processed by ftt Lfmcw雷達采用了“差拍-傅立葉”接收機結構,其回波中頻信號經數字采集后進行fft處理,從而獲得雷達的距離譜。

Exhaustion homodyne deletion technique , and analyses initiative homodyne deletion technique , passive homodyne deletion technique . finally finish ' s physical design and elastic tube ' s strength analysis 最后還完成了測試短節的機械結構設計和感壓彈性管的強度分析。